21378592

素因数分解:

$2^5\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{937}}^1$

素因数の和:1001

約数の個数: 48

約数和(自身を含む): 45384192

約数和(自身を除く): 24005600

約数列:

[1, 2, 4, 8, 16, 23, 31, 32, 46, 62, 92, 124, 184, 248, 368, 496, 713, 736, 937, 992, 1426, 1874, 2852, 3748, 5704, 7496, 11408, 14992, 21551, 22816, 29047, 29984, 43102, 58094, 86204, 116188, 172408, 232376, 344816, 464752, 668081, 689632, 929504, 1336162, 2672324, 5344648, 10689296, 21378592]

約数ペア:

[(1, 21378592), (2, 10689296), (4, 5344648), (8, 2672324), (16, 1336162), (23, 929504), (31, 689632), (32, 668081), (46, 464752), (62, 344816), (92, 232376), (124, 172408), (184, 116188), (248, 86204), (368, 58094), (496, 43102), (713, 29984), (736, 29047), (937, 22816), (992, 21551), (1426, 14992), (1874, 11408), (2852, 7496), (3748, 5704)]